SELECTION GUIDE
BULLETIN 156-B
Solid-State Contactors
Bulletin 156
Solid-State Contactors
Product Overview/Product Selection
Table of Contents
Bulletin 156 — Solid-State Contactors
The Bulletin 156 Solid-State Contactors are ideal replacements for
electro-mechanical contactors where fast and demanding switching of
loads such as heaters, solenoids, transformers, and motors, is
required.
Compact modular design complete with heatsink
Panel or DIN Rail mountable
Simple installation
Available in single-phase, dual-phase, or three-phase version
Operational current rating 20…90 A
LED status indication
AC, DC, and analog control options
Zero-cross switching
Integrated varistor for surge protection
Product Selection ...... this page
Specifications.............. 34
Approximate
Dimensions................... 52
Standards Compliance
UL 508
IEC 60947-4-2
Certifications
cULus Listed (File No. E96956,
Guides NMFT, NMFT7)
Solid-State Power Contactors
Single-Phase‡
Operational Voltage
Hp Rating @ 40 °C (104 °F)
Current Rating [A]
20
30
45
50
70
75
90
Control Voltage
24…275V AC, 24…48V DC
5…24V DC
24…275V AC, 24…48V DC
5…24V DC
24…275V AC, 24…48V DC
5…24V DC
24…275V AC, 24…48V DC
5…24V DC
24…275V AC, 24…48V DC
5…24V DC
24…275V AC, 24…48V DC
5…24V DC
24…275V AC, 24…48V DC
5…24V DC
24…230V AC
42…600V AC
480V 600V
115V
230V
1/6
1/2
1
2
1/2
1-1/2
3
5
1
2
5
7-1/2
1
2
5
7-1/2
1-1/2
3
5
10
1-1/2
3
5
10
1-1/2
3
5
10
Cat. No.
156-B20AA1
156-B20CA1
156-B20AB1
156-B20CB1
156-B30AA1
156-B30CA1
156-B30AB1
156-B30CB1
156-B45AA1
156-B45CA1
156-B45AB1
156-B45CB1
156-B50AA1
156-B50CA1
156-B50AB1
156-B50CB1
156-B70AA1
156-B70CA1
156-B70AB1
156-B70CB1
♣
156-B75AA1
♣
156-B75CA1
♣
156-B75AB1
♣
156-B75CB1
♣
156-B90AA1
♣
156-B90CA1
♣
156-B90AB1
♣
156-B90CB1
‡ Includes an integrated varistor for surge protection.
These Hp ratings only apply to units with operational voltage ranges of 42…600V AC.
♣ Includes an integrated fan in the heat sink assembly. Fan will automatically switch on when necessary. Includes overtemperature protection. See page 53 for
details.
Dual-Phase‡
Operational Voltage
Hp Rating @ 40 °C (104 °F)
Current Rating [A]
25
32
Control Voltage
24…275V AC, 24…190V DC
5…24V DC
24…275V AC, 24…190V DC
5…24V DC
24…230V AC
48…600V AC
480V 600V
115V
230V
1
3
5
7-1/2
1
3
7-1/2
10
Cat. No.
156-B25AA2
156-B25CA2
156-B25AB2
156-B25CB2
156-B32AA2
156-B32CA2
156-B32AB2
156-B32CB2
‡ Includes an integrated varistor for surge protection.
These Hp ratings only apply to units with operational voltage ranges of 48…600V AC.
Three-Phase
Operational Voltage
24…230V AC
Hp Rating @ 40 °C (104 °F)
Current Rating [A]
20
25
32
480V 600V
48…600V AC
Control Voltage
115V
230V
24…275V AC, 24…190V DC
1
3
5
7-1/2
156-B20AA3
156-B20CA3
5…24V DC
1
3
5
7-1/2
156-B20AB3
156-B20CB3
24…275V AC, 24…190V DC
1
3
7-1/2
10
156-B25AA3
156-B25CA3
5…24V DC
1
3
7-1/2
10
156-B25AB3
156-B25CB3
24…275V AC, 24…190V DC
1
3
7-1/2
10
♣
156-B32AA3
♣
156-B32CA3
5…24V DC
1
3
7-1/2
10
♣
156-B32AB3
♣
156-B32CB3
Cat. No.
These Hp ratings only apply to units with operational voltage ranges of 48…600V AC.
♣ Includes an integrated fan in the heat sink assembly. Fan will automatically switch on when necessary. Includes overtemperature protection. See page 53 for
details.
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1
Bulletin 156
Solid-State Contactors
Product Selection, Continued
Solid-State Specialty Contactors
Single-Phase with Current Monitoring1
Operational Voltage
Current
Rating [A]
Supply
Voltage
Control
Voltage
30
24V DC
24…265V AC
Rated Hp @ 40 °C (104 °F), 50/60 Hz
115V AC
230V AC
480V AC
600V AC
3/4
2
5
5
1
2
5
7-1/2
4…32V DC
50
Alarm Type
42…660V AC
Cat. No.
PNP, N.O.
156-B30ABP
156-B30CBP
NPN, N.O.
156-B30ABN
156-B30CBN
PNP, N.O.
156-B50ABP
156-B50CBP
NPN, N.O.
156-B50ABN
156-B50CBN
These Hp ratings only apply to units with operational voltage ranges of 42…660V AC.
1 For current monitoring range, please see additional specifications on page 36 and monitoring Operations data on page 54.
Single-Phase, Single-Pole, Multi-function Analog§
Operational Voltage
90…265V AC
Current Rating [A]
30
50
Control Input
200…550V AC
410…660V AC
Cat. No.
0…10V DC‡
156-B30AV1
156-B30BV1
156-B30CV1
4…20 mA
156-B30AC1
156-B30BC1
156-B30CC1
0…10V DC‡
156-B50AV1
156-B50BV1
156-B50CV1
4…20 mA
156-B50AC1
156-B50BC1
156-B50CC1
§ See additional specifications, see page 36 and analog operations data on page 56.
‡ Requires a 24V AC/DC supply to power the control circuitry of the solid-state contactor. See wiring diagrams on page 39 for additional details.
2
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Bulletin 156
Solid-State Contactors
Specifications
General
Single-Phase and Single-Phase
with Current Monitoring
Nominal Voltage Rating
Operational Voltage Range
Blocking Voltage
Dual- and Three-Phase
Single-Phase with Analog Control
230V AC
400/480/600V AC
230V AC
400/480/600V AC
230V AC
400/480V AC
600V AC
24…265V AC
42…660V AC
24…280V AC
48…660V AC
90…265V AC
200…550V
AC
410…660V
AC
650Vp
1200Vp
650Vp
1200Vp
650Vp
1200Vp
1200Vp
Operational frequency
45…65 Hz
≥ 0.5 @ 230V
AC rms
Power Factor Minimum
≥ 0.5 @ 600V AC
rms
≥ 0.5 @ 230V
AC rms
Rated Insulation Voltage —
Input to output, output to case
≥ 0.5 @ 600V AC
rms
≥ 0.9 @ 230V AC
rms
≥ 0.9 @ 480V ≥ 0.9 @ 600V
AC rms
AC rms
4000V AC rms
Relay ON Indication
Green LED, ON when control input is detected
Red LED, on when the solid-state contactor (SSC) temperature switching element (SCR) temperature is exceeded. SSC
output (load) will switch OFF (Green LED: OFF). When overtemperature condition is removed, red LED will go OFF and
normal operation will continue on the control input cycle.
Overtemp Alarm ON Indication1
Overtemp Alarm1
I max.
50 mA DC
50 mA DC
50 mA DC
50 mA DC
⎯
⎯
⎯
U max.
50V DC
50V DC
50V DC
50V DC
⎯
⎯
⎯
Standards Compliance
cULus
Environmental
Operating Temperature
-30 … 70 °C (-22 …158 °F)
Storage Temperature
-40 … 100 °C (-40 …212 °F)
RoHS Compliance
Yes
Vibration
6 G (per EN50155)
Pollution Degree
2
Mechanical
Housing Material
PBT, Flame Retardent
Heat Sink Material
Black Anodized Aluminum
Din Rail Mount Base
Electroplated Steel
Mounting
Vertical
Approximate Weight
22.5 mm
0.225 kg (0.5 lb)
45 mm
0.43 kg (0.95 lb)
45 mm with
Integrated Fan
0.46 kg (1.0 lb)
90 mm
0.75 kg (1.65 lb)
90 mm with
Integrated Fan
0.78 kg (1.72 lb)
Package Size
22.5 mm
Screw Type
Control Terminals
M3
min wire size
1 x 0.5 mm2 (1 x 20 AWG)
1 x 0.5 mm2 (1 x 20 AWG)
max wire size
2 x 2.5 mm2 (2 x 14 AWG)
1 x 4.0 mm2 (1 x 12 AWG) or 2 x 2.5 mm2 (2 x 1 4AWG)
max torque
bit type
Screw Type
Power Terminals
45 and 90 mm
M4
2 N•m
0.6 N•m
posidrive 1 bit
posidrive 0 bit
M4
M5
min wire size
1 x 0.5 mm2 (1 x 20 AWG)
1 x 4.0 mm2 (1 x 12 AWG)
max wire size
1 x 4.0 mm2 (1 x 12 AWG) or 2 x 2.5 mm2 (2 x 14 AWG)
1 x 25 mm2 (1 x 3 AWG) or 2 x 10 mm2 (2 x 6 AWG)
max torque
bit type
2 N•m
2.5 N•m
posidrive 1 bit
posidrive 2 bit
1 Alarm capability exists on 1-phase 75 and 90 A, 24V DC control and 3-phase 32 A, 24V DC control units.
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3
Bulletin 156
Solid-State Contactors
Specifications, Continued
Control Input
Single-Phase, Single-Phase with Current Monitoring, and
Single-Phase with Analog Control
Control voltage range (±10%)
Dual- and Three-Phase
DC
AC/DC
DC
AC/DC
Control Voltage Range
4…32V
24…275V AC/24…48V DC
5…32V DC
24…275V AC/24…190V DC
Pick Up Voltage
3.8V DC
22V AC/DC
4.7V DC
22V AC/DC
Reverse Voltage
32V DC
32V DC
Drop Out Voltage
1.2V DC
⎯
6V AC/DC
1.2V DC
⎯
6V AC/DC
12 mA
17 mA
24 mA
15 mA
1/2 Cycle
1 Cycle
1 Cycle
1 Cycle
Maximum Input Current
Maximum Response Time Pick
Up and Drop Out
Power Output
Rated
Operational
Current
Max. OffState Leakage
Max.
NonCurrent @
Repetitive
Repetitive
Rated Voltage
Overload Surge Current
and
Housing AC51 AC53a
Current
(ACrms)
Frequency
I2T for
Fusing
Size
Min. Oper. (ACrms)
Tj = 25 °C
@
@
Tj = 25 °C
t = 10 ms
[mm]
Current
t=1s
t = 10 ms
25 °C 25 °C
t = 10 ms
Single-Phase
with Analog
Control
Critical
dV/dT
Off-State
156-B20…1
22.5
20 A
5. A
350 mA
35 A
300 A
3 mA
450 A2s
20 A
1.6 Vrms
500 V/uS
22.5
30 A
15 A
250 mA
125 A
600 A
3 mA
1800 A2s
40 A
1.6 Vrms
500 V/uS
156-B45…1
45
45 A
20 A
400 mA
150 A
1150 A
3 mA
6600 A2s
60 A
1.6 Vrms
500 V/uS
156-B50…1
45
50 A
30 A
500 mA
200 A
1900 A
3 mA
18000 A2s
90 A
1.6 Vrms
500 V/uS
90
70 A
30 A
500 mA
200 A
1900 A
3 mA
18000 A2s
90 A
1.6 Vrms
500 V/uS
A2s
90 A
1.6 Vrms
500 V/uS
156-B75…1
45 with
fan♣
75 A
30 A
500 mA
200 A
1900 A
3 mA
18000
156-B90…1
90 with
fan♣
90 A
30 A
500 mA
200 A
1900 A
3 mA
18000 A2s
90 A
1.6 Vrms
500 V/uS
156-B25…2
45
3x
25 A
3x
15 A
250 mA
125 A
600 A
3 mA
1800 A2s
40 A
1.6 Vrms
500 V/uS
156-B32…2
90
3x
32 A
3x
15 A
250 mA
125 A
600 A
3 mA
1800 A2s
40 A
1.6 Vrms
500 V/uS
156-B20…3
45
3x
20 A
3x
15 A
250 mA
125 A
600 A
3 mA
1800 A2s
40 A
1.6 Vrms
500 V/uS
156-B25…3
90
3x
25 A
3x
15 A
250 mA
125 A
600 A
3 mA
1800 A2s
40 A
1.6 Vrms
500 V/uS
156-B32…3
45 with
fan♣
3x
32 A
3x
15 A
250 mA
125 A
600 A
3 mA
1800 A2s
40 A
1.6 Vrms
500 V/uS
156-B30…
45
30 A
15 A
150 mA
125 A
600 A
5 mA
1800 A2s
40 A
1.6 Vrms
1000 V/uS
156-B50…
45
50 A
30 A
500 mA
200 A
1900 A
5 mA
18000 A2s
90 A
1.6 Vrms
1000 V/uS
156-B30…
45
30 A
⎯
150 mA
55 A
325 A
3 mA
525 A2s
30 A
1.6 Vrms
1000 V/uS
156-B50…
45
50 A
⎯
500 mA
200 A
1900 A
3 mA
18000 A2s
90 A
1.6 Vrms
1000 V/uS
Dual-Phase
Single-Phase
with Current
Monitoring
On-State
Voltage Drop
@ Rated
Current
Tj = 25 °C
t = 10 ms
156-B30…1
Single-Phase 156-B70…1
Three-Phase
Max.
SCCR
(65 kA)
Fuse
Current
AC51 indicates a resistive load. For details, refer to IEC 60947-4-3. AC53a indicates an inductive (motor) load. For details, refer to IEC 60947-4-2.
♣ Includes an integrated fan in the heat sink assembly. Fan will automatically switch on when necessary. DC control Includes overtemperature alarm cutout.
Power Dissipation
Single-Phase
Size [A]
Power Dissipation [W/A]
20
1.10
30
0.95
45
0.90
50
0.85
75
0.90
70
0.90
90
0.93
Dual-Phase
25/32
2.80
Three-Phase
20/25/32
1.92
30
1.00
50
0.85
30
0.95
50
0.85
Single-Phase with Current Monitoring
Single-Phase with Multi-Function Analog Control
4
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Bulletin 156
Solid-State Contactors
Specifications, Continued
Additional Specifications that only apply to the Single-Phase with Current Monitoring Contactor
Supply Status Indication
Green LED, Half Intensity
Control Status Indication
Green LED
Overtemp Alarm Trip Indication
Red LED, Intermittent
Alarm Indication (except for overtemp alarm)
Red LED
Power Supply Voltage, Vcc
24V DC +/- 15%
Maximum Supply Currrent
22 mA (per device)
Maximum Control Input Current
1.5 mA
Maximum PLC Current @ 24 VDC
275 uA (per device)
Alarm Output Current, Maximum
Alarm Output Voltage
50 mA DC
NPN (N.O.)
1 + 0.15 Io
PNP (N.O.)
VCC - 1 - 0.15 Io
≤ 50
Maximum number of Parallel Outputs
Current Monitoring
Measurement Range
Minimum Teach Current
Minimum Partial Load
Current
30 A
0.3 … 30 A AC rms
50 A
0.5 … 50 A AC rms
30 A
0.3 A AC rms
50 A
0.5 A AC rms
30 A
50 mA AC rms
50 A
83 mA AC rms
Additional Specifications that only apply to the Single-Phase with Multi-Function Analog Control Contactor
Load Status Indication
Red LED
Control Status Indication
Green LED
Control Current Range
Current Controlled Input
Specifications
4…20 mA
Max. Allowable Current
50 mA
Pick Up Current
4.2 mA
Drop Out Current
3.9 mA
Reverse Polarity
Protected
Yes
Voltage Drop
Voltage Controlled Input
Specifications
10V DC @ 20 mA
Supply Voltage Range,
Vss§
20…28V AC/DC
Supply Current§
18 mA @ 24V DC
23 mA @ 24V AC
Control Voltage Range,
Vcc
0…10V DC
Control Input Current
0.1 mA @ 10V DC
Reverse Polarity
Protected
Yes
Pick up Voltage
0.5V DC
Drop out Voltage
0.05V DC
Output Power Range
0…99%
Current Control Level
Transfer Characteristics Output Power %
4 mA
0V DC
25%
8 mA
2.5V DC
50%
12 mA
5V DC
75%
16 mA
7.5V DC
99%
20 mA
Mode 1 - Phase Angle
Mode 2 - Full Cycle
Output Power Resolution
Voltage Control Level
0%
10V DC
1/300 @ 50 Hz , 1/300 @ 60 Hz
1/64 @ 50 Hz , 1/64 @ 60 Hz
Mode 3 - 1 Sec Burst
1/50 @ 50 Hz , 1/60 @ 60 Hz
Mode 4 - 3 Sec Burst
1/150 @ 50 Hz , 1/180 @ 60 Hz
Mode 5 - 10 Sec Burst
1/500 @ 50 Hz , 1/600 @ 60 Hz
§ The 0…10V DC type contactor requires a 24V AC/DC supply to power the control circuitry of the solid-state contactor.
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5
Bulletin 156
Solid-State Contactors
Specifications, Continued
Applications
2 Single-Phase Contactors
in 3-phase application
Delta and Star Connection
Single-Phase Contactors
Line-Neutral/Line-Line
P= IL*UL
P=1.73*IL*UL
3 Single-Phase Contactors
in 3-phase application
Delta, Star, Star with Neutral Connection
P=1.73*IL*UL
6
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Bulletin 156
Solid-State Contactors
Specifications, Continued
Applications, Continued
Dual-Phase Contactor
in 3-phase application
Delta and Star Connection
Dual-Phase Contactor
Line-Neutral/Line-Line
P=1.73*IL*UL
P=1.73*IL*UL
Three-Phase Contactor
Delta and Star Connection
P=1.73*IL*UL
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7
Bulletin 156
Solid-State Contactors
Specifications, Continued
Typical Wiring Diagrams
Single-Phase
1L1 3A1
~
~
Control Input
(+,~)
(-,~)
LOAD
2T1 4A2
156-B…1
22 mm Device
Overtemperature Alarm
Output: §
Max. Voltage: 50V DC
Max. Current: 50 mA
4…32V DC
+ Control input
24…275V AC
24…275V AC
Control input
~ Control input
~
1L1 5A3 3A1
1L1 5A3 3A1
1L1 5A3 3A1
~
~
~
~
LOAD
~
LOAD
~
LOAD
2T1 6A4 4A2
2T1 6A4 4A2
Fan supply Input
24V DC, 200 mA
+
- 0V
Fan supply input
24V DC, 200 mA +
-
~
24…275V AC
Control input
8
~
24…275V AC
Control input
DC control with fan
AC control with fan
AC control without fan
Example: 156-B75CB1
Example: 156-B75CA1
Example: 156-B50CA1
45 or 90 mm Device
§
2T1 6A4 4A2
Overtemperature alarm protection/cutout on 75 and 90 A units with 24V DC control.
Integrated fan comes with 75 and 90 A units. Fan must be wired to 24V DC source for contactor to operate.
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Bulletin 156
Solid-State Contactors
Specifications, Continued
Typical Wiring Diagrams, Continued
Dual-Phase
LINE
LINE
5…32V DC
Control input
24…275V AC
Control input
1L13L25L3 A3 A1
1L13L2 5L3 A3 A1
AC Control Input
Example: 156-B32AA2
DC Control Input
Example: 156-B32CB2
2T14T26T3 A4 A2
2T14T26T3 A4 A2
0V
Control input
LOAD
24…275V AC
Control input
LOAD
Three-Phase
Over-temperature alarm output §
Max. voltage: 50V DC
Max. current: 50 mA
LINE
LINE
5…32V DC Control input
5…32V DC Control input
1L1 3L2 5L3 A3 A1
1L1 3L2 5L3 A3 A1
DC Control Input + Fan +
overtemperature alarm
Example: 156-B32CB3
DC Control Input
Example: 156-B20CB3
2T1 4T2 6T3
2T1 4T2 6T3 A4 A2
A2
0V Control/fan/alarm input
0V Control input
LOAD
LOAD
Fan Supply input +24V DC, 65 mA
LINE
24…275V AC or
+24…190V DC
1L1 3L2 5L3 A3 A1
AC Control Input + fan
Example: 156-B32AA3
2T1 4T2 6T3 A4 A2
LOAD
24…275V AC
or 0V DC
+ Fan supply input +24V DC, 65 mA
§
Overtemperature alarm protection/cutout on 32 A units with 24V DC control.
Integrated fan comes with 32 A units. Fan must be wired to 24V DC source for contactor to operate.
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9
Bulletin 156
Solid-State Contactors
Specifications, Continued
Typical Wiring Diagrams, Continued
Single-Phase with Current Monitoring (NPN)
Single-Phase with Current Monitoring (PNP)
Alarm/Remote
+ 4…32V DC
Alarm/Remote
+ 4…32V DC
1L1 5A3 3A1
1L1 5A3 3A1
~
~
~
LOAD
~
LOAD
2T1 6A4 4A2
2T1 6A4 4A2
24V DC +
3A1:
5A3:
6A4:
4A2:
24V DC +
1L1 Alm Ctrl
-
+ 4…20 mA
1L1
+ 10V DC
OUTPUT
1L1
~
2T1 24V GND
6A4 4A2
3A1 - 5A3: Control input current
Example: 156-B30BC1
INPUT
OUTPUT
5A3 3A1
PLC
~
2T1
+
_
OUTPUT
Control Input
5A3 3A1
- 0V
1L1 Alm Ctrl
0V -
Control Input
24 VDC
Control input 4…32V DC
Alarm output NPN open collector
Supply 24V DC
Control/Alarm GND 0V
- 0V
Control input 4…32V DC
Alarm output PNP open collector
Supply 24V DC
Control/Alarm GND 0V
Notes:
1. Control input (terminal A1) and remote alarm
(terminal A3) must have common ground
2. The current monitoring SSC and PLC
must be sourced from the same 24V DC supply
3. PNP and NPN should not be
~ connected
to the same alarm line
4. A maximum of 6 loads can be
~
LOAD
connected in parallel
3A1:
5A3:
6A4:
4A2:
LOAD
2T1
2T1
6A4
4A2
24V DC/AC +
Supply Input ‡
24V GND
- 0V
‡ Requires a 24V AC/DC supply to power the control circuitry of the solid-state contactor.
3A1 - 5A3: Control input voltage, Vcc
4A2 - 6A4: Supply input voltage, Vss
Example: 156-B30BV1
24V
GND
Bulletin 156
Solid-State Contactors
Specifications, Continued
Load Versus Ambient Temperature Derating Curves
Single-Phase (Standard)
20
30A
20A
10
20
30
40
50
60
Load Current (AACrms)
Load Current (AACrms)
30
0
45/50/75 A
80
70
60
50
30
20
20
70
75A
40
50A
45A
30
40
50
60
70
Surrounding Temperature (˚C)
Surrounding Temperature (˚C)
Load Current (AACrms)
20/30 A
40
70/90 A
100
90
80
70
60
50
90A
40
70A
30
20
30
40
50
60
70
Surrounding Temperature (˚C)
Single-Phase (Current Monitoring and Multifunction Analog)
60
Load Current (AACrms)
50
40
156-B50…
30
156-B30…
20
10
0
20
30
40
50
60
Surrounding Temperature (˚C)
Note: Based on 100% duty cycle
Dual- and Three-Phase
Load Current (AACrms)
20/25/30 A
156-B32…3
156-B32…2
156-B25…2/3
156-B20…3
Surrounding Temperature (˚C)
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11
Bulletin 156
Solid-State Contactors
Specifications
Panel Mounting Recommended Contactor Spacings
120 mm
22.5 mm
12
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Bulletin 156
Solid-State Contactors
Specifications, Continued
Panel Mounting Load Derating vs. Spacing Curves
Single-Phase
20 A (156-B20…1)
21A
20A
19A
Load Current (AACrms)
18A
17A
16A
15A
14A
13A
12A
22.5mm
11A
10A
9A
10.0mm
6.0mm
3.0mm
0.0mm
8A
7A
6A
20˚C
25˚C
30˚C
35˚C
40˚C
45˚C
50˚C
55˚C
60˚C
65˚C
70˚C
Load Current (AACrms)
30 A (156-B30…1)
31A
30A
29A
28A
27A
26A
25A
24A
23A
22A
21A
20A
19A
18A
17A
16A
15A
14A
13A
12A
11A
10A
9A
22.5mm
20˚C
25˚C
30˚C
35˚C
40˚C
45˚C
50˚C
55˚C
60˚C
65˚C
10.0mm
6.0mm
3.0mm
0.0mm
70˚C
45 A (156-B45…1)
46A
44A
Load Current (AACrms)
42A
40A
38A
36A
34A
32A
30A
28A
26A
22.5mm
10.0mm
6.0mm
3.0mm
0.0mm
24A
22A
20A
20˚C
25˚C
30˚C
35˚C
40˚C
45˚C
50˚C
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55˚C
60˚C
65˚C
70˚C
13
Bulletin 156
Solid-State Contactors
Specifications, Continued
Panel Mounting Load Derating vs. Spacing Curves, Continued
Single-Phase
50 A (156-B50…1)
52A
50A
Load Current (AACrms)
48A
46A
44A
42A
40A
38A
36A
34A
32A
30A
22.5mm
10.0mm
6.0mm
28A
26A
24A
20˚C
25˚C
30˚C
35˚C
40˚C
45˚C
50˚C
55˚C
60˚C
65˚C
3.0mm
0.0mm
70˚C
Load Current (AACrms)
75 A (156-B75…1)
76A
74A
72A
70A
68A
66A
64A
62A
60A
58A
56A
54A
52A
50A
48A
46A
44A
42A
40A
38A
36A
22.5mm
10.0mm
6.0mm
3.0mm
0.0mm
20˚C
14
25˚C
30˚C
35˚C
40˚C
45˚C
50˚C
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55˚C
60˚C
65˚C
70˚C
Bulletin 156
Solid-State Contactors
Specifications, Continued
Panel Mounting Load Derating vs. Spacing Curves, Continued
Single-Phase
20˚C
25˚C
30˚C
35˚C
40˚C
45˚C
50˚C
55˚C
60˚C
65˚C
22.5mm | 10.0mm
6.0mm
3.0mm | 0.0mm
70˚C
Surrounding Temperature (˚C)
90 A (156-B90…1)
Load Current (AACrms)
Load Current (AACrms)
70 A (156-B70…1)
72A
70A
68A
66A
64A
62A
60A
58A
56A
54A
52A
50A
48A
46A
44A
42A
40A
38A
92A
90A
88A
86A
84A
82A
80A
78A
76A
74A
72A
70A
68A
66A
64A
62A
60A
58A
56A
54A
52A
50A
48A
20˚C
25˚C
30˚C
35˚C
40˚C
45˚C
50˚C
55˚C
60˚C
65˚C
22.5mm
10.0mm
6.0mm
3.0mm
0.0mm
70˚C
Surrounding Temperature (˚C)
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15
Bulletin 156
Solid-State Contactors
Specifications, Continued
Panel Mounting Load Derating vs. Spacing Curves, Continued
Dual-Phase
Load Current per phase [A]
156-B25…2
Surrounding Temperature (˚C)
Load Current per phase [A]
156-B32…2
Surrounding Temperature (˚C)
16
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Bulletin 156
Solid-State Contactors
Specifications, Continued
Panel Mounting Load Derating vs. Spacing Curves, Continued
Three-Phase
Load Current per phase [A]
156-B20…3
Surrounding Temperature (˚C)
Load Current per phase [A]
156-B25…3
Surrounding Temperature (˚C)
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17
Bulletin 156
Solid-State Contactors
Specifications, Continued
Panel Mounting Load Derating vs. Spacing Curves, Continued
Three-Phase
Load Current per phase [A]
156-B32…3
Surrounding Temperature (˚C)
18
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Bulletin 156
Solid-State Contactors
Specifications, Continued
Panel Mounting Load Derating vs. Spacing Curves, Continued
Single-Phase with Current Monitoring
Load Current (AACrms)
30 A (156-B30...N or P)
Surrounding Temperature (˚C)
Load Current (AACrms)
50A (156-B50...N or P)
Surrounding Temperature (˚C)
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19
Bulletin 156
Solid-State Contactors
Specifications, Continued
Panel Mounting Load Derating vs. Spacing Curves, Continued
Multi-function Analog
30A (156-B30...C1 or V1)
Load Current (AACrms)
35
30
25
20
15
10
22.5 mm
10.0 mm
6.0 mm
3.0/ 0.0 mm
5
0
20
25
30
35
40
45
50
55
60
65
70
Surrounding Temperature (˚C)
50A (156-B50...C1 or V1)
55
Load Current (AACrms)
50
45
40
35
30
25
20
22.5/ 10.0 mm
6.0 mm
3.0 mm
0.0 mm
15
10
20
30
40
50
60
Surrounding Temperature (˚C)
20
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70
Bulletin 156
Solid-State Contactors
Approximate Dimensions
Αππροξιματε
Διμενσιονσ
Dimensions in millimeters. Dimensions are not intended for manufacturing purposes.
Refer to column 3 of the Power Output table on page 35 for cat. no. dimension reference.
22.5 mm
45 mm (shown with fan)§
2.
2
12.5
51.8
Ø5
Ø5
122
81.7
94
102.6
94
81.7
4.4
12.5
R
22.5
46.5
103
4.4
51.8
45
46.5
103
§ The fan adds approximately 28 mm to the height of the SSC. Subtract 28 mm
for the approximate height of SSCs without fans. Refer to page 32 for
products with fans.
90 mm (shown with fan)§
102.5
§ The fan adds approximately 28 mm to the height of the SSC. Subtract 28 mm for the
approximate height of SSCs without fans. Refer to page 32 for products with fans.
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21
Bulletin 156
Solid-State Contactors
Overtemperature Alarm Cutout/Protection Operation
The Bulletin 156-B… Solid-State Contactor (SSC) with a fan (Cat.
Nos. 156-B75...1, 156-B90...1, and 156-B32...3) has an
overtemperature alarm, cutout/protection feature. The cutout feature
protects the SSC electronic switching circuit from overtemperature
damage by automatically switching off the output (load) when the
core temperature of the SSC exceeds 125 ºC.
Note: in this condition the fan will be running unless there is a fan
circuit issue. When the cutout occurs the SSC red LED will light and
if the alarm contact is wired it will close to notify a monitoring device
such as the PLC of the condition. The following diagram provides
additional details.
SSC Input
≥20 ms
Green LED
SSC Output
Overtemperature
Sensing
Red LED
Over-temperature
detection
Over-temperature protection is ON
SSC Output disabled
Closed
Alarm Status
Open
After over-temperature condition is removed, SSC can be reset by switching OFF the control input for more
than 20 ms and switching back ON: this will switch ON the SSC output
22
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Bulletin 156
Solid-State Contactors
Cat. No. 156-B…P or …N Current Monitoring Operation
Product Description
Remote TEACH
The Bulletin 156-B… P or …N Current-Monitoring Solid-State
Contactor (SSC) is a single-phase device that is sensitive to
variations in load current conditions. This microprocessor-based
device can detect a partial load failure and ensure the highest
process quality. Current sensing is integrated inside to eliminate the
need to install an external current transformer. A membrane TEACH
button on the front is used to effect a simple “teach in” of the
normal operating current setpoint. Alarm delay time is set by a
potentiometer. Typical conditions that can be detected are heater
break or open-circuit, blown fuse, semiconductor short-circuit and
faulty power connection. A 13% reduction from normal operation
(TEACH current level) triggers a current alarm. SSC overtemperature protection is integrated as a standard feature.The
product is ready to mount on DIN Rail or chassis and comes with
integral heatsink. The standard 45 mm housing dimensions enable
straightforward replacement of alternative products.
Apply a 3-second pulse. The red LED will flash after each second.
After the LED flashes 3 times and the remote “teach” command has
been accepted, the heater loads (of all SSCs connected to the same
alarm line) are automatically switched ON and the red LED will flash
quickly 10 times. When the current setpoint has been stored
successfully, the red and green LEDs will scroll intermittently to
indicate that the TEACH procedure has been completed. The load(s)
will now be switched on or off according to the control input’s status
Remote RESET/ UNBLOCK
Alarm Operation
Current Setpoint
The current setpoint is the nominal operating current that is
expected when all the heater loads are functioning properly. If the
heater loads are faulty or the supply voltage is not close to the
nominal level, the wrong setpoint will be stored during TEACH.
Initialization
As shipped, no setpoint is stored in the SSC flash memory. Both
green and red LEDs will flash intermittently to indicate that a
setpoint must be stored using the TEACH procedure.The load will
not go on when the control is applied until a TEACH command is
successful.
Local Functions
Local functions can be activated by using the TEACH push button
on the front of the SSC. While an alarm is being issued by any SSC
connected to the common alarm line or a remote command is being
issued, no local commands are accepted.
Local TEACH
Press and hold the TEACH button for approximately 3 seconds. The
red LED will flash after each second. After the LED flashes 3 times,
release the button. If the “teach” command was accepted, the
heater loads are automatically switched ON. The red LED will flash
quickly 10 times. When the current setpoint has been stored
successfully, the red and green LEDs will scroll intermittently to
indicate that the TEACH procedure has been completed. The load
will now be switched on or off according to the control input’s
status. It is very important to hold the button down for only 3 flashes
of the red LED to make a successful TEACH. If the TEACH
procedure is not successful, the SSC will automatically reset to
factory default (i.e., no setpoint stored).
Local RESET
When an alarm has occurred the device can be locally RESET by
pressing the TEACH button for 1 second. The red LED will flash
once. This will reset the alarm. If the alarm condition has been
cleared the SSC will return to normal operation. If the alarm
condition is still active, the SSC will automatically go back to alarm
status.
Local TEST
In the absence of a signal on the “control input” terminal, a local
TEST can be made by pressing and holding the TEACH button for 5
seconds. After the red LED flashes 5 times, release the button. The
SSC will switch ON the load for 1 second. This test detects if there
is an undercurrent or heater break alarm condition.
Remote Setup Procedure
Remote functions can be activated with a PLC or any other logic
controller by applying timed pulses to the alarm terminal: >10V for
Cat. No. 156-B…P and <10V for 156-B…N.
When an alarm has occurred the SSC can be remotely RESET by
applying a 1-second pulse. A 1-second pulse will also unblock local
TEACH of all SSCs connected to the same alarm line. The red LED
will flash once. This will reset the alarm. If the alarm condition has
been cleared the SSC will return to normal operation. If the alarm
condition is still active, the SSC will automatically go back to alarm
status.
Remote BLOCK
Applying a 5-second pulse will force the SSC to block local TEACH.
After this, no local TEACH commands are accepted. To unblock this
condition, a remote RESET must be issued. If the 24V supply is
removed, local TEACH BLOCK is lost. Another REMOTE BLOCK
must be issued.
Alarms
Alarm DELAY
A potentiometer on the front of the SSC allows a time delay on the
heater break alarm between 0…40 s. For heaters having a low cold
resistance, the time for the inrush current to decay to a value less
than 13% of the current set-point plus an additional 20 ms must be
added to the potentiometer alarm delay setting. For an alarm signal
to occur, the alarm condition must persist throughout this time
period. The alarm output is enabled only after this time delay has
passed. However, if the control input is disabled for a period of time
equal to four times the delay setting, the internal alarm delay timer
is reset automatically. (See Alarm Operation graphs.)
SSC remains OFF due to Line Voltage Loss or Thyristor Open
Circuit Failure (Reaction Time = 85 ms)
The SSC generates one pulse with duration of 7 seconds on the
alarm terminal. This alarm is non-latching. The red LED remains ON
after this alarm condition until a RESET is issued.
Heater Break
A Heater Break alarm is given if the current measured through the
SSC is 13% less than the current setpoint stored in the flash
memory for a period of time greater or equal to the alarm delay
potentiometer setting. The SSC generates one pulse with duration
of 8 seconds on the alarm terminal. The alarm signal is non-latching.
The red LED remains ON after this alarm condition until a RESET is
made. If the measured current changes to within 10% of the Current
Setpoint, before the Alarm DELAY time has elapsed, the Alarm
DELAY timer is reset.
Overtemperature or Overcurrent
This alarm occurs if any one of following two conditions is true:1.
The SSC detects an internal over-temperature condition at any time
during operation and switches off the output. The red LED flashes
intermittently.2. A current above the nominal SSC rating is measured
during current setpoint TEACH. This action erases the current
setpoint from flash memory and both red and green LEDs will flash
intermittently until a TEACH procedure with an acceptable current is
carried out.In both cases, the SSC generates one pulse with
duration of 9 seconds on the alarm terminal. The alarm signal is
non-latching.
Thyristor Short-Circuit (Reaction time = 110 ms)
The SSC generates one pulse with duration of 10 seconds on the
alarm terminal. The alarm signal is non-latching. The red LED
remains ON after this alarm condition until a RESET is made.
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23
Bulletin 156
Solid-State Contactors
Cat. No. 156-B…P or …N Current Monitoring Operation
Alarms Connected in Parallel to one PLC Input and one PLC
Output
For REMOTE operation, up to 50 SSCs can be connected in parallel
to at least one PLC input. This PLC input must also be connected in
parallel to the PLC output. The PLC input must be programmed to
detect alarms while the PLC output must be programmed to supply
the pulses required for REMOTE Setup. When more than one SSC is
present, pulses from the PLC output or alarm pulses from any
device will cause the red LEDs on all devices in parallel to flash
intermittently for a max. of 6.25 seconds. After this time, it is only
SSCs with an alarm condition that will have their red LED on.
Example:
Set the alarm delay setting to 2 s (minimum). If the full load current
is set at 30 A, then there will be an alarm condition if the current is
under 26.1 A for more than 2 s. (Any fluctutation in the load current
that is present for <2 s will not be signalled – this is intended to
eliminate false alarms due to short duration undervoltage conditions
on the supply phase). If the control input goes off within the 2 s, the
alarm timer will not be reset provided the control input goes on
again within 8 s (4x2 s).
Alarm Operation
Alarm Condition
Reset Condition
Setup and Alarms
Current under-range
detected during TEACH
Heater break alarm
24
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Bulletin 156
Solid-State Contactors
Cat. No. 156-B…C1 or …V1 Multi-Function Analog Operation
Product Description
The Bulletin 156-B… Analog Control Solid-State Contactor (SSC) is a single-phase device that provides proportional output power in relation
to the analog control signal level applied. This microprocessor-based device provides 5 different switching modes integrated into one
package. A selector switch on the front of the device is used for the selection of the preferred mode of operation, i.e., either Phase Angle,
Distributed Full Cycle, or Burst Control. This multi-function selection makes this SSC ideal for the control of a variety of loads, including
heaters and lamps. The control signal can be either 4…20 mA or 0…10V DC. 4 mA or 0V correspond to zero output power, and 20 mA or 10V
DC correspond to full output power.The product is ready to mount on DIN Rail or chassis and comes with an integral heatsink.
Operation
MODE 1:
The Phase Angle switching mode works in accordance with the phase angle control principle, i.e. the output switching point in the AC sine
wave depends on the signal level applied at the input. The SSC switches off every time the output current crosses zero. See Figure 1.
MODE 2:
The Distributed mode provides a number of full cycles, evenly distributed over a fixed period of 1.28 s @ 50 Hz (1.07 s @ 60 Hz), depending
on the control input. Example: with 50% control input, the SSC output will be on for one cycle and off for one cycle. See Figure 2.
MODE 3, 4, 5:
The Burst Switching mode generates a number of full cycles, depending on the control input over fixed periods of 1 s, 3 s or 10 s for MODES
3, 4 and 5 respectively. Example: with Mode 4 (3-second burst) configured and 50% control input, the SSC output will be on for 1.5 s and off
for 1.5 s. See Figure 3.
Modes 2, 3, 4 and 5 use the zero switching principle, thus ensuring a reduced level of radiated and wire-conducted noise. The Distributed
and Burst Switching modes are not recommended for light control due to light-flickering.
LED Indication
The top RED LED indicates the load status. It goes ON whenever the load is activated. The Green LED gives indication of the status of the
control input.
Upon application of control current (for the cat. no. 156-Bxx…C1) to terminals A1 – A3, the Green LED will be dimly lit, with its intensity
increasing with an increase in control current. For the cat. no. 156-Bxx…V1, the Green LED will be ON (flickering) upon application of the
supply voltage to terminals A2 – A4. Once a control voltage is applied to terminals A1 – A3, the Green LED will be fully ON, if greater than a
threshold voltage (approx 0.5V). Note that the first time the device (voltage control version) is to be activated, the mains voltage has to be
present for the Green LED to indicate the control status.
Transfer Characteristics
Mode Selection
Output power as a function of control input
Mode
Mode
Mode
Mode
Mode
Control Current
[mA]
Control Voltage [V
DC]
4
0
0
8
2.5
25
12
5
50
16
7..5
75
20
10
99
Output Power [%]
1
2
3
4
5
Phase Angle Switching
Distributed Control Mode
Burst Switching (1 s period)
Burst Switching (3 s period)
Burst Switching (10 s period)
Functional Diagram
MODE 1
Phase angle
Figure 1
MODE 2
Distributed Full Cycle
Figure 2
MODE 3, 4, 5
Burst 1 s, 3 s, 10 s
Figure 3
1 period = 64 cycles
1 period = 1 s, 3 s or 10 s
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25
Publication 156-SG002C-EN-E — N ovember 2009
Supercedes Publication 156-SG002B-EN-E — May 2009
Copyright ©2009 Rockwell Automation, Inc. All Rights Reserved. Printed in USA.